Mott MacDonald to provide engineering services for Crossrail tunnels fit-out project

21 April 2013 (Last Updated April 21st, 2013 18:30)

The Alstom, TSO and Costain (ATC) joint venture has selected UK-based Mott MacDonald as its engineering consultant for the fit-out of the new Crossrail tunnels in London, UK.

Crossrail tunnel fit out

The Alstom, TSO and Costain (ATC) joint venture has selected UK-based Mott MacDonald as its engineering consultant for the fit-out of the new Crossrail tunnels in London, UK.

Under the deal, Mott MacDonald will support the ATC JV by providing detailed design of tunnel ventilation, mechanical and electrical systems, as well as the tunnel walkways.

Mott MacDonald will also be responsible for providing environmental services and systems assurance as part of an integrated team.

Earlier in April 2013, the ATC joint venture secured a £300m contract to carry out the major fit-out and commissioning of the new rail tunnels.

The ATC joint venture will fit out 21km of twin tunnels with the necessary track, overhead power equipment and services to allow the running of Crossrail trains.

"Mott MacDonald will support the ATC JV by providing detailed design of tunnel ventilation, mechanical and electrical systems, as well as the tunnel walkways."

The fit-out work under the deal is expected to start in 2014, following the completion of Crossrail’s twin-bore tunnels that stretch across central London and the Docklands.

The work will be carried out within the entire tunnelled section of the Crossrail route between Royal Oak, Pudding Mill Lane and Plumstead Portals.

ATC will be responsible for installing over 42km of track and rigid overhead conductors to power heavy mainline trains.

The scope of work also includes the installation of 48 ventilation fans, 40km of walkways, 66 drainage pumps, 40km of fire mains and lighting throughout the route.

When fully operational in 2018, Crossrail will pass through 37 stations and run 118km from Maidenhead and Heathrow in the west, through central London in new twin-bore 21km tunnels to Shenfield and Abbey Wood in the east.

Following opening, the Crossrail service is expected to increase London’s rail-based transport network capacity by 10% and carry around 200 million passengers a year.


Image: Mott MacDonald will provide detailed design of all tunnel systems to the ATC joint venture, which will start the Crossrail tunnel fit-out works in 2014. Photo: courtesy of Crossrail.